[On the correspondence between V. I. Iakovenko and A. P. Chekhov (unpublished letter of A. P. Chekhov to V. I. Iakovenko)].
D049672:History, 19th Century; D006801:Humans; D011570:Psychiatry / Q000266:history*; D014586:USSR
K perepiske mezhdu V. I. Iakovenko i A. P. Chekhovym (neopublikovannoe pis'mo A. P. Chekhova k V. I. Iakovenko)